Call Sheryl Sandberg the poster child for top female exec and you wouldn’t be wrong. The Harvard grad was Treasury Department chief of staff at 30, a Google VP at 32, recruited for the COO role at Facebook by Mark Zuckerberg himself, and named in Time’s list of the 100 most influential people in the world.

Now she has a book coming out, examining why U.S. business is still a boys’ club and what can change that.

Sandberg started early in management. She trained her siblings to “follow me around, listen to my monologues and scream the word ‘right’ when I concluded.”

Also, she got an early view of sexism in the workplace. When Sandberg interned on Capitol Hill, she was introduced to House Speaker Tip O’Neill.

“The speaker looked at me, then reached over and patted my head,” Sandberg writes. He called her pretty and then asked her one question: “Are you a pom-pom girl?”

If he were alive today, she writes, “I might tell him I’m a pom-pom girl for feminism.”

Sandberg's book isn't just a look back. It points out the extra hurdles women face in today's workplace. For example, men can take managers out for drinks; women who do look like flirts or worse. She cites an example of a business trip to South Africa with Treasury Secretary Larry Summers. The two worked until 3 a.m. in his hotel suite, and she noted, “We both knew it would look awful if anyone saw me leaving his hotel suite at that time,” and she couldn’t sneak out because “there is no difference between trying not to be seen leaving someone’s hotel room late at night and actually leaving someone’s hotel room late at night.”